Portable solar battery



FIG. 1 is a perspective view of a portable solar battery showing our new design;

FIG. 2 is a rear perspective view of the portable solar battery;

FIG. 3 is a front elevation view of the portable solar battery;

FIG. 4 is a rear elevation view of the portable solar battery;

FIG. 5 is a top plan view of the portable solar battery;

FIG. 6 is a bottom plan view of the portable solar battery;

FIG. 7 is a right side view of the portable solar battery; and,

FIG. 8 is a left side view of the portable solar battery.

The broken lines shown in the figures are stitches. 

The ornamental design for a portable solar battery, as shown and described. 